A small group is using agents. Adoption has spread beyond one person but is not project-wide.
Assisted or autonomous
Assisted — a developer’s identity authored the commit and the agent added itself as co-author. The agent ran git commit during a working session, with a person there. Autonomous — a bot identity is the author, no human in the loop. Across the whole index, 93.7% of agent commits are assisted.
Agent share by month
Peak month: 16.2%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 13 | 4.7% |
| GitHub Copilot | GitHub | 5 | 1.8% |
| Cursor Agent | Anysphere | 1 | 0.4% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
3478d4fa[WEB-8352] fix(security): scope SubIssuesEndpoint to the URL project (#946Claude Code30527927[WEB-8103] fix: stop leaking webhook HMAC secret_key on reads (#9382)Claude Codeddac107achore: remove Zenith managed hosting from README (#9693)Claude Codeaf1be50b[WEB-8074] fix: scope IssueListEndpoint to guest created_by (#9374)GitHub Copilot4225bc59[GIT-175] fix: completed_at updation logic for work items (#9044)GitHub Copilotda41f14achore(ci): suppress CodeQL file coverage deprecation warning (#8916)GitHub Copilot49c4da6dfix: strip control characters from sanitized filenames (#9151)Cursor Agent
What was excluded
| Commits in window | 294 |
| Merge commits removed | −4 |
| CI / dependency bots removed | −15 |
| Considered | 275 |
Bots are excluded from the denominator entirely. Counting dependabot as “AI-written code” is the fastest way to produce a meaningless number.
How this was measured
Measured over February–August 2026, cloned directly. Detection is deterministic string matching against signatures agents write about themselves — no heuristics, no style analysis. Merge commits and CI bots are excluded from the denominator. The figure is a floor: squash merges strip trailers, so real usage is higher. Contributor counts are aggregate — no individual is named.
Run it yourself: npx qmmit-cli makeplane/plane